ACQUISITIONS ACQUISITIONS (Details 7) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Business Acquisition [Line Items]
Cash paid, net	$ 418,265	$ 263,811	$ 166,784
Other Acquisitions [Member]
Business Acquisition [Line Items]
Cash paid	109,345	11,000	171,829
Less: cash acquired	(7,712)		(5,062)
Cash paid, net	101,633	11,000	166,767
Contingent purchase consideration		1,225	21,355
Additional purchase consideration			(211)
Total purchase consideration	$ 101,633	$ 12,225	$ 187,911